Indonesian Physical Review
Vol. 9 No. 2 (2026)

THREE-DIMENSIONAL RESISTIVITY MODELING OF THE HYDROTHERMAL FLOW SYSTEM IN TANJUNG SAKTI PUMI REGION, INDONESIA

Marven Saputra (Geofisika, Fakultas Matematika dan Ilmu Pengetahuan Alam, Universitas Bengkulu)
Suhendra Suhendra (Geophysics, Faculty of Mathematics and Natural Sciences, University of Bengkulu)
Refrizon Refrizon (Geophysics, Faculty of Mathematics and Natural Sciences, University of Bengkulu)
Florenzy Ernica Putra (Geophysics, Faculty of Mathematics and Natural Sciences, University of Bengkulu)



Article Info

Publish Date
05 May 2026

Abstract

Tanjung Sakti Pumi Subdistrict, Lahat Regency, South Sumatra Province, is characterized by surface geothermal manifestations, particularly hot springs associated with a hydrothermal system. This study aims to evaluate hydrothermal potential and subsurface fluid-flow patterns by analyzing resistivity variations using the Schlumberger Vertical Electrical Sounding (VES) method. An integrated interpretation combining one-dimensional (1D), two-dimensional (2D), and three-dimensional (3D) resistivity modeling was applied to improve subsurface characterization. The results reveal low-resistivity zones (< 6 Ωm), interpreted as clay-rich hydrothermal alteration layers (clay cap), while deeper, moderate-to-high-resistivity zones are associated with potential geothermal reservoirs. This multi-dimensional approach enhances the delineation of lateral and vertical continuity of conductive zones, providing a more comprehensive understanding of structurally controlled hydrothermal systems in the study area. The findings demonstrate the effectiveness of integrated resistivity modeling for preliminary geothermal exploration and offer important insights into subsurface geothermal structures in Tanjung Sakti Pumi.

Copyrights © 2026






Journal Info

Abbrev

ipr

Publisher

Subject

Education Physics

Description

Indonesian Physical Review is a peer review journal which is managed and published by Physics Departement, Faculty of Mathematics and Natural Sciences, Universitas Mataram. This journal is published periodically three times a year, in January, May and September. IPR is Open Accsess for all readers ...